SOLUTION: I do not understand the process of solving this: 5^-1 a^-6 b^-6/4^-1 a^8 b^-4

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Question 416844: I do not understand the process of solving this: 5^-1 a^-6 b^-6/4^-1 a^8 b^-4
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
I do not understand the process of solving this:
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Note: The negative in the exponent mean "invert".
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5^-1 a^-6 b^-6/4^-1 a^8 b^-4
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= (4*b^4)/(5*a^6*b^6)
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= 4/(5a^6b^2)
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Cheers,
Stan H.